IRONWOOD PHARMACEUTICALS INC (IRWD) Stock Ownership

NASDAQ:IRWD • US46333X1081

3.74 USD
+0.1 (+2.75%)
At close: Mar 4, 2026
3.76 USD
+0.02 (+0.53%)
After Hours: 3/4/2026, 5:20:02 PM
Overview Stock Chart Technical Analysis Fundamental Analysis Forecast Earnings Financials Ownership News
IRWD Ownership Chart.IRWD Ownership Chart: showing Insider, Institutional ownership and shares available to the public.IRWD Ownership.InsiderInstitutionalPublic



Shares Outstanding163.06M
Float158.68M
Float Short Interest Percentage7.03%
Owners (insider)2.66%
Owners (institutional)93.44%
Owners (insider) change-2.87%
Owners (institutional) change2.09%
IRWD Institutional Ownership HistoryIRWD Institutional Ownership HistoryIRWD Institutional Ownership History Sep 2021 Mar 2022 Sep 2022 Mar 2023 Sep 2023 Mar 2024 Sep 2024 Mar 2025 Sep 2025 50M 100M 150M
IRWD Historical Insider Transactions ChartIRWD Historical Insider Buy and Sell Transactions ChartIRWD Historical Insider Transactions Apr 2025 May 2025 Jun 2025 Jul 2025 Aug 2025 Sep 2025 Oct 2025 Nov 2025 Dec 2025 Jan 2026 Feb 2026 Mar 2026 0 200K -200K 400K
Date Name Type Shares Price Amount
Feb 23, 2026 John Minardo Open Market Sale 36492 3.73 $ 136,176.57
Feb 23, 2026 Shetzline Michael Open Market Sale 32582 3.73 $ 121,585.62
Feb 23, 2026 Gaskins Tammi L Open Market Sale 21526 3.73 $ 80,328.21
Feb 23, 2026 MCCOURT Thomas A Open Market Sale 198283 3.73 $ 739,929.33
Feb 23, 2026 Martini Gregory S. Open Market Sale 21944 3.73 $ 81,888.09
Feb 23, 2026 Silver Ronald Open Market Sale 24173 3.73 $ 90,205.98
Jan 5, 2026 Silver Ronald Open Market Sale 35416 4.60 $ 162,913.60
Dec 15, 2025 DENNER ALEXANDER J Grant 4178 0.00 $ 0.00
Dec 15, 2025 Sarissa Capital Management LP Grant 4178 0.00 $ 0.00
Nov 17, 2025 Gaskins Tammi L Open Market Sale 6016 3.32 $ 19,973.12
Sep 15, 2025 DENNER ALEXANDER J Grant 11718 0.00 $ 0.00
Aug 11, 2025 Gaskins Tammi L Open Market Sale 1316 0.84 $ 1,105.44
Aug 11, 2025 Martini Gregory S. Open Market Sale 1265 0.84 $ 1,062.60
Aug 11, 2025 Silver Ronald Open Market Sale 2846 0.84 $ 2,390.64
Aug 11, 2025 John Minardo Open Market Sale 7754 0.84 $ 6,513.36
Jun 13, 2025 DENNER ALEXANDER J Grant 24193 0.00 $ 0.00
Jun 13, 2025 Sarissa Capital Management LP Grant 24193 0.00 $ 0.00
Jun 10, 2025 Moukheibir Catherine Grant 45000 0.00 $ 0.00
Jun 10, 2025 Duane Jon R Grant 45000 0.00 $ 0.00
Jun 10, 2025 McHugh Julie Grant 45000 0.00 $ 0.00
Jun 10, 2025 Currie Mark G Grant 45000 0.00 $ 0.00
Jun 10, 2025 Dreyfus Andrew Grant 45000 0.00 $ 0.00
Jun 10, 2025 DENNER ALEXANDER J Grant 45000 0.00 $ 0.00
Jun 10, 2025 Sarissa Capital Management LP Grant 45000 0.00 $ 0.00
Jun 10, 2025 Shepard Jay Grant 45000 0.00 $ 0.00
Jun 10, 2025 Kessler Marla L Grant 45000 0.00 $ 0.00
May 20, 2025 MCCOURT Thomas A Grant 540000 0.00 $ 0.00
May 16, 2025 MCCOURT Thomas A Open Market Sale 13353 0.58 $ 7,744.74
May 16, 2025 Gaskins Tammi L Open Market Sale 2563 0.58 $ 1,486.54
Apr 2, 2025 DENNER ALEXANDER J Grant 10416 0.00 $ 0.00
Apr 2, 2025 Sarissa Capital Management LP Grant 10416 0.00 $ 0.00